15
Dec
At the beginning we will start with a simple hadoop job. Suppose that we have a big file that contains many words sperated by a white space, and we...
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map reduce Tag
05
Dec
In each city in Tunisia, we have a temperature sensor that send data to server. In the server each record it’s stored in a file. Unfortunately the structure of the...
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05
Dec
The inverted index problem is one of the earliest and most common uses of MapReduce.The IndexInverterJob takes a set of <key,value> pairs and inverts the index, so that each value becomes...
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05
Dec
Objective : Write a MapReduce program that searches for occurrences of a given string in a large file. Probably you may think about using a grep command line and that's it. But what...
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05
Dec
At the beginning we will start with a simple hadoop job. Suppose that we have some big files where each line contain temperature degree, and we want to get the...
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05
Dec
In this tutorial we will see how to install a Hadoop multi node nodes by doing the following steps: step1: You need to ensure that hadoop is installed (single node mode)...
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05
Dec
In this tutorial we will see how to install a Hadoop single node by doing the following steps Step 1: Before installing Hadoop, you need to First ensure that java8 is...
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